Swager.



No. 748,565. Patented December 29, 1903.

GUSTIN B. STONE, OF CHICAGO, ILLINOIS.

vswAe ER.

SPECIFICATION forming part of Letters `Patent No. 748,555, dated December 29, 1903- YApplication filed December 15.1902. Serial No. 135,193. (No model.)

T 1f/ZZ whom i may OOWGWl/r y between the swaging-dies around the tooth 5o Be it known that I, GUSTIN B. STONE, a citiform or pattern 4, and 6 a plunger adapted zen of the United States, and a resident of to be inserted into the cylinder or barrel 1 Chicago, in the county of Cook and State of and through which the blow is transmitted Illinois, have invented a Swager, of which the to the upper swaging-die 2. As regards their following is a specification. usual features, all of the foregoing parts are 5 5 y This invention relates to swagers, and reold and well known and will be readily unlates particularly to swagers of the type comderstood by those familiar with the art withprising a cylinder or barrel, upper and lower out a detailed description thereof. 1o swaging-dies fitted thereto, between which The swaging face or surface of the lower the article to be swaged is placed, and granuswaging-die 3 instead of being flat, as here- 6o lar or plastic material inserted between'the tofore, is concave, declining inwardly from swaging-dies around the article to be swaged. near the edge thereof to the base or neck of Swagers of this type are particularly designed the tooth form or pattern. Obviously the I5 and adapted for use by dentists in tting or component of a blow on the lateral sides of a A conforming seamless gold crowns and plates cartridge adjusted to the tooth form or pat- 65 to tooth forms or patterns. tern will increase as the concavity of the top The object of my invention is to provide increases. In practice I have found that a means for supporting the tooth form or patconcavity of about forty-five degrees is sufzo tern in fixed position, whereby the swaging ficient to create a component on the lateral impact will be distributed uniformly on all sides of the cartridge, which will swage or 7o sides thereof, thus insuring that the lateral drive it in and cause it to conform exactly to sides of the cartridge or plate will be made the contour of the tooth form or pattern. to conform exactly to the contour of the tooth As a further improvement in swagers of z 5 form or pattern. this type I provide improved means for sup- To this end a swager of my invention conporting the tooth form or pattern in the lower 75 sists of the various features, combinations of die, consisting of a hole or opening 7 formed features, and details of construction hereinin the lower die 3, which is adapted to receive after described and claimed. a shank 8 on the tooth form or pattern, where- In the accompanying drawings a swager of by said tooth forni or pattern will be supmy invention is fully illustrated. ported in upright position, all as clearly shown 8o Figure 1 is a perspective view ofa swager 4in Fig. 2. of my invention, the cylinder or barrel being I claimbroken away to show other parts thereof; Aswager comprising a barrel or casing and and Fig. 2 is a sectional View of a removable opposed upper and lower swaging-dies fitted lower swaging-die, showing a tooth form or to the bore thereof, the swaging-surface of 85 pattern supported therein. the lower die being concave and said lower For purposes of illustration I have herein die being provided with a hole or opening at shown and described a swager of my inventhe bottom of said concave swaging-surface 4o tion as applied for swaging gold crowns to designed to receive a shank on the tooth form tooth-forms. or pattern, substantially as described. 9o ,A Referring now to the drawings, ldesignates In testimony that I claim the foregoing as the cylinder or barrel of the swager," 2 and my invention I affix my signature, in presence 3, the upper and lower swaging-dies, respecof two subscribing witnesses, this 9th day of tively; 4, a tooth form or pattern supported December, A. D. 1902.

in the lower swaging-die 3, to which is ad- GUSTIN B. STONE.

justed the gold cartridge from which the Witnesses: crown is to be formed; 5,aquantity of granu- M. S. SOMERVILLE,

r lar material, as cornmeal or the like, inserted ROBERT J. SATCLIFF. 

